org.openimaj.image.feature.local.keypoints

Class KeypointLocation

java.lang.Object

org.openimaj.math.geometry.point.Point2dImpl

org.openimaj.feature.local.SpatialLocation

org.openimaj.feature.local.ScaleSpaceLocation

org.openimaj.image.feature.local.keypoints.KeypointLocation

All Implemented Interfaces:

Serializable, Cloneable, Location, Readable, ReadableASCII, ReadableBinary, ReadWriteable, Writeable, WriteableASCII, WriteableBinary, Coordinate, Point2d, ScaleSpacePoint

Direct Known Subclasses:

AffineSimulationKeypoint.AffineSimulationKeypointLocation, MinMaxKeypoint.MinMaxKeypointLocation, SIFTGeoKeypoint.SIFTGeoLocation

public class KeypointLocation
extends ScaleSpaceLocation

The location of a Keypoint.

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
float	orientation The dominant orientation of the Keypoint

Fields inherited from class org.openimaj.feature.local.ScaleSpaceLocation

scale

Fields inherited from class org.openimaj.math.geometry.point.Point2dImpl

x, y

Constructor Summary

Constructors

Constructor and Description
KeypointLocation() Construct with zero location, orientation and scale.
KeypointLocation(float x, float y, float orientation, float scale) Construct with the given parameters

Method Summary

Modifier and Type	Method and Description
String	asciiHeader() Header for ascii input.
byte[]	binaryHeader() Header for binary input.
int	getDimensions()
Float	getOrdinate(int dimension) Get the ordinate value for a specific dimension.
void	readASCII(Scanner in) Read internal state from in.
void	readBinary(DataInput in) Read internal state from in.
void	writeASCII(PrintWriter out) Write the content of this as ascii to out.
void	writeBinary(DataOutput out) Write the content of this as binary to out.

Methods inherited from class org.openimaj.feature.local.ScaleSpaceLocation

clone, getScale, setScale

Methods inherited from class org.openimaj.math.geometry.point.Point2dImpl

copy, copyFrom, createRandomPoint, createRandomPoint, equals, fromDoubleArray, getX, getY, hashCode, minus, setOrdinate, setX, setY, toString, transform, translate, translate

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.openimaj.math.geometry.point.Point2d

copy, copyFrom, getX, getY, minus, setX, setY, transform, translate, translate

Methods inherited from interface org.openimaj.math.geometry.point.Coordinate

setOrdinate

Field Detail

orientation

public float orientation

The dominant orientation of the Keypoint

Constructor Detail

KeypointLocation

public KeypointLocation()

Construct with zero location, orientation and scale.

KeypointLocation

public KeypointLocation(float x,
                        float y,
                        float orientation,
                        float scale)

Construct with the given parameters

Parameters:

x - x-ordinate of feature

y - y-ordinate of feature

scale - scale of feature

orientation - orientation of feature

Method Detail

writeBinary

public void writeBinary(DataOutput out)
                 throws IOException

Description copied from interface: WriteableBinary

Write the content of this as binary to out.

Specified by:

writeBinary in interface WriteableBinary

Overrides:

writeBinary in class ScaleSpaceLocation

Parameters:

out - sink to write to

Throws:

IOException - an error writing to out

writeASCII

public void writeASCII(PrintWriter out)
                throws IOException

Description copied from interface: WriteableASCII

Write the content of this as ascii to out.

Specified by:

writeASCII in interface WriteableASCII

Overrides:

writeASCII in class ScaleSpaceLocation

Parameters:

out - sink to write to

Throws:

IOException - an error writing to out

readBinary

public void readBinary(DataInput in)
                throws IOException

Description copied from interface: ReadableBinary

Read internal state from in.

Specified by:

readBinary in interface ReadableBinary

Overrides:

readBinary in class ScaleSpaceLocation

Parameters:

in - source to read from.

Throws:

IOException - an error reading input

readASCII

public void readASCII(Scanner in)
               throws IOException

Description copied from interface: ReadableASCII

Read internal state from in.

Specified by:

readASCII in interface ReadableASCII

Overrides:

readASCII in class ScaleSpaceLocation

Parameters:

in - source to read from.

Throws:

IOException - an error reading input

binaryHeader

public byte[] binaryHeader()

Description copied from interface: ReadableBinary

Header for binary input. Will be automatically read by IOUtils when using readBinary().

Specified by:

binaryHeader in interface ReadableBinary

Specified by:

binaryHeader in interface WriteableBinary

Overrides:

binaryHeader in class ScaleSpaceLocation

Returns:

header

asciiHeader

public String asciiHeader()

Description copied from interface: ReadableASCII

Header for ascii input. Will be automatically read by IOUtils when using readASCII().

Specified by:

asciiHeader in interface ReadableASCII

Specified by:

asciiHeader in interface WriteableASCII

Overrides:

asciiHeader in class ScaleSpaceLocation

Returns:

header

getOrdinate

public Float getOrdinate(int dimension)

Description copied from interface: Coordinate

Get the ordinate value for a specific dimension.

Specified by:

getOrdinate in interface Coordinate

Overrides:

getOrdinate in class ScaleSpaceLocation

Parameters:

dimension - The index of the dimension we are interested in

Returns:

The value of the ordinate of the given dimension.

getDimensions

public int getDimensions()

Specified by:

getDimensions in interface Coordinate

Overrides:

getDimensions in class ScaleSpaceLocation

Returns:

The number of dimensions in the coordinate.